23986728643 has 2 divisors, whose sum is σ = 23986728644. Its totient is φ = 23986728642.

The previous prime is 23986728641. The next prime is 23986728659. The reversal of 23986728643 is 34682768932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23986728643 - 2¹ = 23986728641 is a prime.

Together with 23986728641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23986728641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11993364321 + 11993364322.

It is an arithmetic number, because the mean of its divisors is an integer number (11993364322).

Almost surely, 2^23986728643 is an apocalyptic number.

23986728643 is a deficient number, since it is larger than the sum of its proper divisors (1).

23986728643 is an equidigital number, since it uses as much as digits as its factorization.

23986728643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20901888, while the sum is 58.

The spelling of 23986728643 in words is "twenty-three billion, nine hundred eighty-six million, seven hundred twenty-eight thousand, six hundred forty-three".